SIP Status Reports

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Status of Utah Designated Areas

Utah Areas by NAAQS
As of 10/21/2019

Jump to Utah section for: CO (1971) Lead (1978) Lead (2008) NO2 (1971) Ozone-1Hr (1979) Ozone-8Hr (1997) Ozone-8Hr (2008) Ozone-8Hr (2015) PM-10 (1987) PM-2.5 (1997) PM-2.5 (2006) PM-2.5 (2012) SO2 (1971) SO2 (2010)


Utah CO (1971) Areas    Return to map
 
Click on the Area name
to view SIP Required Elements


Area
Status Designation
Date
Classification 2010
Population
(state portion)
Meets NAAQS
Basis
Design Value
Annual
(ppm)
(entire area)
Meets
NAAQS
SIP
Requirements
Original/
Approved
Clean Air
Determination
Citation
Effective Date
Click to view
FR notice
Redesignation
Request Date
Redesignation
Citation
Effective Date
Click to view
FR notice
Ogden Area Maintenance 11/15/1990 Moderate <= 12.7ppm 82,825 2018 1 Yes 4 / 4 05/08/2001
66 FR 14078
01/14/1997 05/08/2001
66 FR 14078
Provo Area Maintenance 11/15/1990 Moderate > 12.7ppm 166,596 2018   No Data 6 / 6 01/03/2006
70 FR 66264
04/01/2004 01/03/2006
70 FR 66264
Salt Lake City Area Maintenance 11/15/1990 Not Classified 186,440 2018 2.8 Yes 2 / 2 03/22/1999
64 FR 3216
11/24/1995 03/22/1999
64 FR 3216

Utah Lead (1978) Areas     Return to map Top of page

No designated areas for this pollutant.

Utah Lead (2008) Areas     Return to map Top of page

No designated areas for this pollutant.

Utah NO2 (1971) Areas     Return to map Top of page

No designated areas for this pollutant.

Utah Ozone-1Hr (1979) Areas    Return to map     Top of page

Click on the Area name
to view SIP Required Elements


Area
Status Designation
Date
Classification 2010
Population
(state portion)
Meets NAAQS
Basis
Design Value
Annual
(ppm)
(entire area)
Meets
NAAQS
SIP
Requirements
Original/
Approved
Clean Air
Determination
Citation
Effective Date
Click to view
FR notice
Redesignation
Request Date
Redesignation
Citation
Effective Date
Click to view
FR notice
Salt Lake City Area; (Davis County / Salt Lake County) Maintenance (NAAQS revoked) 11/15/1990 Moderate 1,336,134 2016-2018 0.103 Yes 22 / 22 08/18/1997
62 FR 38213
11/12/1993 08/18/1997
62 FR 38213

Utah Ozone-8Hr (1997) Areas     Return to map Top of page

No designated areas for this pollutant.

Utah Ozone-8Hr (2008) Areas     Return to map Top of page

No designated areas for this pollutant.

Utah Ozone-8Hr (2015) Areas    Return to map     Top of page

Click on the Area name
to view SIP Required Elements


Area
Status Designation
Date
Classification 2010
Population
(state portion)
Meets NAAQS
Basis
Design Value
Annual
(ppm)
(entire area)
Meets
NAAQS
SIP
Requirements
Original/
Approved
Clean Air
Determination
Citation
Effective Date
Click to view
FR notice
Redesignation
Request Date
Redesignation
Citation
Effective Date
Click to view
FR notice
Northern Wasatch Front Nonattainment 08/03/2018 Marginal 1,615,574 2016-2018 0.078 No 3 / 0  
 
   
Southern Wasatch Front Nonattainment 08/03/2018 Marginal 515,895 2016-2018 0.072 No 3 / 0  
 
   
Uinta Basin Nonattainment 08/03/2018 Marginal 47,317 2016-2018 0.088 No 3 / 0  
 
   

Utah PM-10 (1987) Areas    Return to map     Top of page

Click on the Area name
to view SIP Required Elements


Area
Status Designation
Date
Classification 2010
Population
(state portion)
Meets NAAQS
Basis
Average
Estimated
Exceedances
(est. exc.)
(entire area)
Meets
NAAQS
SIP
Requirements
Original/
Approved
Clean Air
Determination
Citation
Effective Date
Click to view
FR notice
Redesignation
Request Date
Redesignation
Citation
Effective Date
Click to view
FR notice
Ogden Area Nonattainment 09/26/1995 Moderate 82,825 2016-2018 0 Yes 3 / 1 02/06/2013
78 FR 885
   
Salt Lake County Nonattainment 11/15/1990 Moderate 1,029,655 2016-2018 0.3 Yes 3 / 3  
 
   
Utah County Nonattainment 11/15/1990 Moderate 516,564 2016-2018 0 Yes 3 / 3  
 
   

Utah PM-2.5 (1997) Areas     Return to map Top of page

No designated areas for this pollutant.

Utah PM-2.5 (2006) Areas    Return to map
Area designated nonattainment for the 24-hour standard     Top of page

Click on the Area name
to view SIP Required Elements


Area
Status Designation
Date
Classification 2010
Population
(state portion)
Meets NAAQS
Basis
Design Value
24-Hr
(µg/m3)
(entire area)
Meets
NAAQS
SIP
Requirements
Original/
Approved
Clean Air
Determination
Citation
Effective Date
Click to view
FR notice
Redesignation
Request Date
Redesignation
Citation
Effective Date
Click to view
FR notice
Logan Nonattainment 12/14/2009 Moderate 112,675 2016-2018 33 Yes 8 / 0 10/19/2018
83 FR 52983
   
Provo Nonattainment 12/14/2009 Serious 517,537 2016-2018 31 Yes 15 / 0 05/10/2019
84 FR 14267
   
Salt Lake City Nonattainment 12/14/2009 Serious 1,665,137 2016-2018 35 Yes 15 / 0 10/28/2019
84 FR 51055
   

Utah PM-2.5 (2012) Areas     Return to map Top of page

No designated areas for this pollutant.

Utah SO2 (1971) Areas    Return to map     Top of page

Click on the Area name
to view SIP Required Elements


Area
Status Designation
Date
Classification 2010
Population
(state portion)
Meets NAAQS
Basis
Design Value
Annual/24-Hr
(ppb)
(entire area)
Meets
NAAQS
SIP
Requirements
Original/
Approved
Clean Air
Determination
Citation
Effective Date
Click to view
FR notice
Redesignation
Request Date
Redesignation
Citation
Effective Date
Click to view
FR notice
Salt Lake County Nonattainment 11/15/1990   1,029,655 2018 0 / 2 Insufficient Data 2 / 2  
 
04/19/2005  
Tooele County (part) Nonattainment 11/15/1990   58,218 2018   /   No Data 2 / 2  
 
04/19/2005  

Utah SO2 (2010) Areas     Return to map Top of page

No designated areas for this pollutant.
We have made our best effort to ensure that the data contained in these reports is accurate. We note that there may be brief delays in updating the reports as we receive new state submissions and we take rulemaking action on plans. In order to assist us in providing accurate information, we request that you contact us by clicking on the "Contact Us" link near the top of this page with any comments regarding or corrections to the posted information, including concerns about whether the entries reflect the most recent status.

Current and historical design value data can be found on the EPA Air Quality Design Values website and the EPA Green Book contains comprehensive nonattainment area, designation status, and historical information.

The level of the 1-hour NAAQS for sulfur dioxide is 75 parts per billion (ppb) calculated as the 3-year average of the 99th percentile of the annual distribution of daily maximum 1-hour average concentrations.